# Choose the event that does not occur in photosynthesis (a) Absorption of light energy by chlorophyll (b) Reduction of carbon dioxide to carbohydrates (c) Oxidation of carbon to carbon dioxide (d) Conversion of light energy to chemical energy

Ans. (c)

Photosynthesis is the process by which green plants and some other organisms use sunlight to synthesize nutrients from carbon dioxide and water. Carbon dioxide is used in photosynthesis for the production of food.
Summary of Photosynthesis in equation form
$6CO_{2} + 12H_{2}O + Chlorophyll + Sunlight -\rightarrow C_{6}H{12}O_{6} + 6O_{2} + 6H_{2}O$
Absorption of light energy by chlorophyll takes place. Carbon dioxide is reduced and fixed in the form of carbohydrates. Reduction of carbon dioxide to carbohydrates also takes place. Oxygen is released from the water molecules. Oxidation of carbon to carbon dioxide does not take place. Conversion of light energy to chemical energy takes place.

Hence option (c) is the correct answer.

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